US Bridges

Rattlesnake Road over Lost Creek

GoodPosted for load

Lane County, Oregon · 0386 MI SE Highway 58 · Structure no. 39C615610400386

Built
1966
59 years old
Condition
Good
inspected October 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
152 ft
3 main spans
Daily traffic
1,688
2020 count
Owner
County
County Highway Agency

About this bridge

Rattlesnake Road over Lost Creek is a prestressed concrete stringer/multi-beam or girder carrying Rattlesnake Road over Lost Creek in Lane County, Oregon. It was built in 1966, so it is 59 years old, older than the Oregon average of 49.9 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. Its operating status is: posted for other load-capacity restriction.

It carries about 1,688 vehicles a day, roughly 10% of them trucks, projected to reach 1,843 by 2025. The structure is 152 ft (46.3 m) long and 36 ft wide.

CarriesRattlesnake Road
CrossesLost Creek
Location0386 MI SE Highway 58
RouteCounty Highway C6104
StateOregon
Coordinates43.9018, -122.82428
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusPosted for other load-capacity restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating42.5 US tons
Inventory rating32.8 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length152 ft (46.3 m)
Longest span50 ft (15.2 m)
Deck width36 ft (10.9 m)
Roadway width30 ft (9.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,688 (2020)
Projected traffic1,843 by 2025
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Rattlesnake Road over Lost Creek built?

It was built in 1966, making it 59 years old in 2025.

What condition is Rattlesnake Road over Lost Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in October 2024.

How much traffic does Rattlesnake Road over Lost Creek carry?

About 1,688 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is Rattlesnake Road over Lost Creek?

The structure is 152 ft (46.3 m) long with a longest span of 50 ft (15.2 m) and a deck 36 ft wide.

Who owns Rattlesnake Road over Lost Creek?

It is owned by the County Highway Agency.